2006-11-20 13:56:47 · 8 answers · asked by fatima_hassanien 1 in Science & Mathematics ➔ Physics
my math teacher told me to ask one of u guys soo yeah im in gr 10 so that should tell not to use confusing terms etc,
2006-11-20 14:02:11 · update #1
Put a yard stick on the floor facing, say, north and south. This represents the first dimension. Notice that anything in the room pointing north and south still represents the first dimension. Now put down another yardstick on top of it facing east and west like a cross. This represents the second dimension. Notice the two yardsticks are right angles (90 degrees) to each other. Important fact - every dimension must be at right angles to all the others. Now figure out how to place another yardstick so it is at right angles to both the ones on the floor.. The only way you can do it is by placing the yardstick straight up and down. This represents the third dimension. Now. Big question. Can you put another yardstick anywhere so it will be at right angles to all three already there? Before you get brain burnout I'll tell you the answer. No, you can't because we live in a three dimensional world. Some physicists have stretched their imaginations though and said that there is a fourth dimension even though we can't draw it or visualize it. We have to imagine it. No matter what direction we face that imaginary yardstick is at right angles to all the spatial dimensions. According to many science wizards, that dimension is time. We can imagine the smaller numbers on the yardstick pointing into the future and the larger ones into the past.
2006-11-20 17:02:34 · answer #1 · answered by JimWV 3 · 1⤊ 1⤋
Generally, the fourth dimension is considered to be time.
One dimension looks like this: <---------------------------------->
It is a line, extending forever in both directions.
Two dimensions look like the browser that you are using to view the web page, or the front fo the monitor. It has length and width, but you can't measure it's debth.
Three dimensions is like a box. you can measure length, width, and height.
The fourth dimension can sort of be imagined as your computer existing on your desk right now, and in the next moment, and in the next moment, on an on, for as long as it exists. Time becomes a line on your graph paper, and the computer is what is being measured.
You could also imagine a road as a piece of graph paper, and a car is driving on it. The car is making a line on the paper. Wherever you point on the paper is a point in time, and if you point on the line the car made, you are pointing to the car at a place in time.
I'ts really hard to describe in words, but I hope I helped a bit.
2006-11-20 14:17:01 · answer #2 · answered by Deirdre H 7 · 2⤊ 0⤋
You may think of it like a 3D movie.
1D would be like an infinitely thin line across one frame of the movie. It would only have length, but no width or depth.
2D would be like the entire frame or a single picture. It would have length and width, but still no depth.
3D would be like a 3D movie, 2D plus depth. You'd need two eyes to see around "shallow frames" to the deeper frames.
4D would be adding "time" to the movie, more frames from 2 or more perspectives.
We live in a 4D world where time flows along with us. But, at any one point things are 3D, that is, we can walk around buildings to see what's on the other side. Be carefull, though, since it is 4D, what was there when you started walking, may not be there when you arrive at the other side.
All movies that we are familiar with are 3D. Length, width, and time.
What we call 3D movies are really 4D, length, width, depth, and time.
Rgds, joe
2006-11-20 14:31:00 · answer #3 · answered by joe_tiac 2 · 0⤊ 1⤋
Pence or penny. The d stood for the Latin be conscious for penny, something like dinar The forex became into LSD (no no longer the acid stuff) yet pounds,shillings and pence.there have been 12 pence in a shilling. 20 shillings in a pound a Pound and one shilling became right into a guinea. factors of a penny have been a halfpenny(ha'penny) 2 to penny and a farthing 4 to a penny.income use have been a farthing,halfpenny.penny threepenny bit,sixpence(tanner),shilling, 2 shillings(a florin), 0.5 a crown(2 shillings and sixpence)a 10 shilling notice, a pound notice and a 5 pound notice ,there have been i've got self belief notes of better currencies yet ordinary human beings did no longer see them.
2016-12-10 12:47:13 · answer #4 · answered by ? 4 · 0⤊ 0⤋
You are talking about dimensions. We only know of 3 dimensions. To think of this, stop what you are doing. Now, you know you can look up and down. You can look right and left. You can look in front of you and behind you. These 3 groups comprise three dimensions. Now, if there is a fourth dimension, where would it fit? Where would it be? We have no way of knowing presently.
2006-11-20 14:00:12 · answer #5 · answered by countryboy_ga1014 2 · 0⤊ 0⤋
Time is the 4th dimension. If you could see time it would be some thing like looking at a 3 dimensional roll of movie film laid out. You could see it all at once.
2006-11-20 14:04:28 · answer #6 · answered by Andy M 3 · 1⤊ 1⤋
1d has length (its a line)
2d has length and width
3d has length, width, and height
4d has length, width, height, and an unknown fourth demension, possibly associated with time
2006-11-20 14:00:46 · answer #7 · answered by scurvybc 3 · 2⤊ 1⤋
I think my head just exploded while thinking about that last response.
2006-11-20 14:11:31 · answer #8 · answered by Where the 'morrow lives 2 · 0⤊ 2⤋